ASRock LGA1150/Intel B85/DDR3/Quad CrossFireX/SATA3 and USB 3.0/A&GbE/ATX Motherboard B85 PRO4 LGA1150 Form Factor: ATX Memory: 4x DDR3-1600/ 1333/ 1066 DIMM Slots, Dual Channel, Non-ECC, Unbuffered, Max Capacity of 32GB SATA: 4x SATA3 Ports, 2x SATA2 Ports Slots: 1x PCI-Express 3.0 x16 Slot, 1x PCI-Express 2.0 x16 Slot (runs at x4), 2x PCI Express 2.0 x1 Slots, 2x PCI Slots Ports: 4x USB 3.0 Ports (2 rear, 2 via header), 8x USB 2.0 Ports (4 rear, 4 via headers), 1x PS/2 Mouse Port, 1x PS/2 Keyboard Port, 1x VGA Port, 1x DVI-D Port, 1x HDMI Port, 1x RJ45 LAN Port, Audio I/O Jacks Power Connector: 1x 24pin ATX Power Connector, 1x 8pin 12V Power Connector